Aerosol provision system

ABSTRACT

An aerosolizable material including at least one active constituent and at least one thermally conductive element, and related methods of manufacturing the aerosolizable material. An aerosol provision system including the aerosolizable material and related methods of providing an aerosol.

PRIORITY CLAIM

The present application is a National Phase entry of PCT Application No.PCT/GB2021/051995, filed Aug. 2, 2021, which claims priority from GBApplication No. 2012085.3, filed Aug. 4, 2021, each of which are herebyfully incorporated herein by reference.

TECHNICAL FIELD

The present invention relates to an aerosolizable material, an aerosolprovision system, a method of providing an aerosol, a method ofmanufacture of an aerosolizable material and an aerosolizable material.

BACKGROUND

Aerosol provision systems are known. Common systems use heaters tocreate an aerosol from an aerosolizable material which is then inhaledby a user. The aerosolizable material from which the aerosol isgenerated may be partially or entirely consumed during use of theaerosol provision system. When an aerosol generating material is heated,the aerosol generating material may change structurally. Over time suchstructural changes may reduce the user experience of the aerosolprovision system, by virtue of changing flavors or increasing difficultyof use as the aerosol generating material is depleted. Temperatures usedto produce aerosols from aerosol generating materials can varythroughout use as these structural changes occur.

It is desirable to provide aerosol provision systems that provideeffective and efficient heating of aerosol generating material.

The present invention is directed toward solving some of the aboveproblems.

SUMMARY

Aspects of the invention are defined in the accompanying claims.

In accordance with some embodiments described herein, there is providedan aerosolizable material comprising at least one active constituent andat least one thermally conductive element, wherein the at least onethermally conductive element has a thermal conductivity of around 10W/mK to around 500 W/mK.

In accordance with some embodiments described herein, there is providedan aerosol provision system comprising: a power source; an aerosolizablematerial; and, a heater for providing heat to the aerosolizablematerial, wherein aerosolizable material comprises at least one activeconstituent and at least one thermally conductive element, wherein theat least one thermally conductive element has a thermal conductivity ofaround 10 W/mK to around 500 W/mK.

In accordance with some embodiments described herein, there is provideda method of providing an aerosol comprising: providing an aerosolprovision device comprising a heater; an aerosolizable materialcomprising at least one active constituent and at least one thermallyconductive element, wherein the thermally conductive element has athermal conductivity of around 10 W/mK to around 500 W/mK; engaging theaerosolizable material with the aerosol provision device; and, heatingthe aerosolizable material with the heater.

In accordance with some embodiments described herein, there is providedan aerosolizable material comprising at least one active constituentmeans and at least one thermally conductive means, wherein the at leastone thermally conductive means has a thermal conductivity of around 10W/mK to around 500 W/mK.

DESCRIPTION OF DRAWINGS

The present teachings will now be described by way of example only withreference to the following figure:

FIG. 1 is a cross-sectional view of an aerosolizable material accordingto an example;

FIG. 2 is a cross-sectional view of an aerosolizable material to anexample;

FIG. 3 is a cross-sectional view of an aerosolizable material accordingto an example;

FIG. 4 is a cross-sectional view of an aerosolizable material accordingto an example;

FIG. 5 is a longitudinal cross-sectional view of an aerosol provisiondevice according to an example and,

FIG. 6 is a longitudinal cross-sectional view of an aerosol provisiondevice according to an example.

While the invention is susceptible to various modifications andalternative forms, specific embodiments are shown by way of example inthe drawings and are herein described in detail. It should beunderstood, however, that the drawings and detailed description of thespecific embodiments are not intended to limit the invention to theparticular forms disclosed. On the contrary, the invention covers allmodifications, equivalents and alternatives falling within the scope ofthe present invention as defined by the appended claims.

DETAILED DESCRIPTION

Aspects and features of certain examples and embodiments arediscussed/described herein. Some aspects and features of certainexamples and embodiments may be implemented conventionally and these arenot discussed/described in detail in the interests of brevity. It willthus be appreciated that aspects and features of apparatus and methodsdiscussed herein which are not described in detail may be implemented inaccordance with any conventional techniques for implementing suchaspects and features.

The present disclosure relates to aerosol provision systems, which mayalso be referred to as aerosol provision systems, such as e-cigarettes.According to the present disclosure, a “non-combustible” aerosolprovision system is one where a constituent aerosolizable material ofthe aerosol provision system (or component thereof) is not combusted orburned in order to facilitate delivery to a user. Throughout thefollowing description the term “e-cigarette” or “electronic cigarette”may sometimes be used, but it will be appreciated this term may be usedinterchangeably with aerosol provision system/device and electronicaerosol provision system/device. Furthermore, and as is common in thetechnical field, the terms “aerosol” and “vapor”, and related terms suchas “vaporize”, “volatilize” and “aerosolise”, may generally be usedinterchangeably.

In the example of FIG. 1 , an aerosolizable material 100 for use in anaerosol provision system is shown. The aerosolizable material 100 may beinserted into, or connected to, an aerosol provision system. The aerosolprovision system may produce an aerosol from the aerosolizable material100. The aerosolizable material 100 comprises at least one activeconstituent 110. The aerosolizable material 100 comprises at least onethermally conductive element 120. The at least one thermally conductiveelement 120 has a thermal conductivity of around 10 W/mK to around 500W/mK. In the example shown in FIG. 1 , the aerosolizable material 100may contain other elements.

The at least one active constituent 110 may comprise one or moreflavors, one or more aerosol-former materials and/or one or morefunctional materials. In a particular example, the at least one activeconstituent 110 may contain nicotine or a nicotine-containing substance.

The at least one thermally conductive element 120 assists in effectivetransfer of heat energy through the aerosolizable material 100. The atleast one thermally conductive element 120 shown in the specific exampleof FIG. 1 is separate from the at least one active constituent 110. Inan example, at least one active constituent 110 and at least onethermally conductive element 120 may be mixed, adjoining or partiallyintermingled. The arrangement of at least one thermally conductiveelement 120 in the aerosolizable material 100 may be selected to enableefficient heat transfer from one portion of the aerosolizable material100 to another. This may be selected, or the aerosolizable material maybe designed, with an understanding of areas of poor thermal conductionwithin the aerosolizable material 100.

In another example, the arrangement of at least one thermally conductiveelement 120 in the aerosolizable material 100 may be selected with anunderstanding of the typical heat flow paths in an aerosol provisionsystem and how these heat flow paths interact with the aerosolizablematerial 100. For example, if heat is to be supplied to theaerosolizable material 100 primarily from one side of the aerosolizablematerial 100, the at least one thermally conductive element 120 may bearranged to effectively conduct heat to another side of theaerosolizable material 100.

In an example, the at least one thermally conductive element 120comprise a binder. A binder may be a material or substance that holds ordraws other materials together to form a cohesive whole mechanically,chemically, by adhesion or cohesion. The use of a binder assists informing the structure of the aerosolizable material 100. The maintenanceof the structure of the aerosolizable material 100 assists in preventionof structural degradation which can occur during heating of theaerosolizable material 100. Such structural degradation can lead touneven heating of the aerosolizable material 100 which can lead toproduction of undesirable compounds due to overheating of certainportions of the aerosolizable material 100. Specific conductive bindersthat may be advantageous include methyl cellulose, carboxylmethylcellulose, alginates as well as gels. The binder need only have athermal conductivity above that of the aerosolizable material (such oftobacco) to improve thermal conduction through the aerosolizablematerial. As such, certain binders may be used with less thermallyconductive aerosolizable material but would not be suitable for morethermally conductive aerosolizable material.

In the example of FIG. 2 , an aerosolizable material 200 is shown. Theaerosolizable material 200 has at least one active constituent 210 andat least one thermally conductive element 220. The at least onethermally conductive element 220 is shown as comprising a binder 222. Inthe schematic example of FIG. 2 , the binder 222 is shown as a confinedportion within the at least one thermally conductive element 220. Thebinder 222 may be distributed evenly or unevenly throughout the at leastone thermally conductive element 220. The thermally conductive element220 and/or the binder 222 may be distributed evenly or unevenlythroughout the aerosolizable material 200. The binder 222 may assist inimproved heat transfer throughout the aerosolizable material 200.

In an example, the at least one thermally conductive element 220 formsat most 20% by volume of the aerosolizable material 200. In otherexamples, the at least one thermally conductive element 220 forms atmost 1%, at most 2%, at most 3%, at most 4%, at most 5%, at most 6%, atmost 7%, at most 8%, at most 9%, at most 10%, at most 11%, at most 12%,at most 13%, at most 14%, at most 15%, at most 16%, at most 17%, at most18%, or at most 19% by volume of the aerosolizable material 200. Theamount of thermally conductive element 220 may be selected to enable abalance between the active constituent 210 present in the aerosolizablematerial 200, for producing a flavor or the like in use, and theassistance to thermal conductivity provided by the thermally conductiveelement 220. In an example wherein the active constituent 210 isparticularly poor at conducting heat, this may be overcome with theprovision of a greater amount of thermally conductive element 220. In anexample wherein the active constituent 210 is better at conducting heat,there may be a lesser amount of thermally conductive element 220 in theaerosolizable material 200.

In the example of FIG. 3 , an aerosolizable material 300 is shown. Theaerosolizable material 300 comprises at least one active constituent 310and at least one thermally conductive element 320. In the example ofFIG. 3 , the at least one thermally conductive element 320 is arrangedsubstantially away from an outer surface 302 of the aerosolizablematerial 300. The location of the at least one thermally conductiveelement 320 may be selected to enable thermal energy transfer toportions of the aerosolizable material 300 that have a lower propensityfor receiving thermal energy during use. In another example, not shown,the at least one thermally conductive element is arranged substantiallytoward an outer surface of the aerosolizable material. This mayencourage heat from an external source towards the centre of theaerosolizable material. For example, if aerosol passing through is theheating mechanism, the aerosol may pass through the homogenous mix ofthe aerosolizable material and so an advantageous location would be onthe outside of the aerosolizable material.

By “locating” and “positioning” of the thermally conductive element 320,as used herein, it is also envisaged that this may refer to thedistribution of the density of the at least one thermally conductiveelement 320 throughout the aerosolizable material 300. In an example,rather than positioning the at least one thermally conductive element320 away from the outer surface 302 of the aerosolizable material 300,the thermally conductive element 320 may be more dense in a centrallocation of the aerosolizable material 300. The density profile may varyfrom portions of the aerosolizable material 300 which receive morethermal heat energy (wherein the density is lower) to portions whichreceive less thermal heat energy (wherein the density is higher).

In an example therefore the thermally conductive element 320 may beconcentrated in particular portions of the aerosolizable material 300and so not be evenly dispersed. The thermally conductive element 320 maybe provided in bulk in a specific location (as in FIG. 3 ) rather thanin isolated, individualised elements throughout the aerosolizablematerial 300. In such an example, therefore, a thermal or physicalnetwork may be provided by the thermally conductive element 320. Such anetwork may be continuous or discrete, and may be formed wherein one ormore portions of the thermally conductive element 320 are in contact.

This enables a manufacturer to advantageously provide a bespoke thermalprofile which can be formed during heating of the aerosolizable material300 which may or may not be equal across the aerosolizable material 300.An advantage of an unequal heat distribution allows a manufacturer totailor additional heating to locations in the aerosolizable material 300that require heating, such as a more central portion of theaerosolizable material 300, which may not be as readily heated as anoutwardly-facing surface.

The centre of the aerosolizable material 300 may receive less thermalheat energy (from an external heating source) than portions locatedcloser to the outer surface 302. As such, in an example, the thermallyconductive element 320 may be formed to transport heat energyeffectively to the centre of the aerosolizable material 300. This may bevia density profile selection or via structures such as rods in whichthe thermally conductive element 320 may be formed or arranged. Suchrods may project into the centre from the outer surface such that thedensity of the rods is higher towards the centre of the aerosolizablematerial 300.

The selection of densities (or the variation of the density) of thethermally conductive element 320 in the aerosolizable material 300should avoid concentrations of heat energy where the active constituent310 may be overheated and produce undesirable compounds.

In an example, the at least one thermally conductive element 320comprises at least one of: a metal, an alloy, a ceramic, glycerol, andgraphite. The glycerol may be vegetable glycerol.

In the example of FIG. 4 , an aerosolizable material 400 is shown. Theaerosolizable material 400 comprises at least one active constituent 410and at least one thermally conductive element 420. In the example ofFIG. 4 , the at least one thermally conductive element 420 comprises atleast a first binding material 422 and a second binding material 424. Inan example, the first binding material 422 having a thermal conductivityof around 300 to around 400 W/mK, and the second binding material 424having a thermal conductivity of around 10 to around 200 W/mK.

The provision of the plurality of portions with differing thermalconductivities within the at least one thermally conductive element 420may enable greater flexibility over the thermal conductivity provided bythe thermally conductive element 420 as a whole. This, in turn,increases the control over the thermal conductivity provided by thethermally conductive element 420. In an example, it may be advantageousto provide a material with a greater thermal conductivity towards theouter surface 402 of the aerosolizable material 400 and a material witha lower thermal conductivity towards the centre such that, in use, heatin conducted towards the centre of the aerosolizable material 400 but isretained more effectively once provided. In the above described example,it is presumed that heat energy is being applied to the aerosolizablematerial 400 such that the outer surface 402 receives at least themajority (if not the entirety) of the incident heat. This of course willdepend on the aerosol provision device with which the aerosolizablematerial 400 is used.

In an example, the at least one active constituent 410 comprises aflavor. The flavor may be olfactory or the like. The active constituent410 may comprise an active substance. The active substance may be e.g.caffeine or the like.

The active constituent 410 as used herein may be a physiologicallyactive material, which is a material intended to achieve or enhance aphysiological response. The active constituent 410 may for example beselected from nutraceuticals, nootropics, psychoactives. The activeconstituent 410 may be naturally occurring or synthetically obtained.The active constituent 410 may comprise for example nicotine, caffeine,taurine, theine, vitamins such as B6 or B12 or C, melatonin,cannabinoids, or constituents, derivatives, or combinations thereof. Theactive constituent 410 may comprise one or more constituents,derivatives or extracts of tobacco, cannabis or another botanical.

In some embodiments, the active constituent 410 comprises nicotine. Insome embodiments, the active substance comprises caffeine, melatonin orvitamin B12. In some embodiments, the active constituent 410 comprisestobacco.

In the example of FIG. 5 , an aerosol provision system 500 is shown. Theaerosol provision system 500 comprises a power source 530. The powersource 530 may be a source of chemical energy such as a battery or thelike. The aerosol provision system 500 comprises an aerosolizablematerial 505. The aerosol provision system 500 also comprises a heater540 for providing heat to the aerosolizable material 505. Theaerosolizable material 505 has at least one active constituent 510 andat least one thermally conductive element 520. The power source 530 isconnected to the heater 540. The power source 530 and the heater 540 maybe arranged to convert chemical energy to thermal energy. The thermalenergy is incident on the side 507 of the aerosolizable material 505facing the heater 540.

As the heater provides thermal energy to the aerosolizable material 505,the active constituent 510 may release compounds which may form anaerosol in air which passes through the system 500. This aerosol mayexit the system 500 via outlet 509. Over time, the active constituent510 adjacent to side 507 will become depleted and there will become aneed for the heat to affect a fresher portion of the active constituent510. Arrangement of the thermally conductive element 520 may enabledepletion of the active constituent 510 to occur more homogeneouslythroughout use. This assists in preventing portions of the activeconstituent 510 from being heated when depleted which can result inundesirable compounds being released.

In the example of FIG. 6 , an aerosol provision system 600 is shown. Theaerosol provision system 600 comprises a power source 630. The powersource 630 may be a source of chemical energy such as a battery or thelike. The aerosol provision system 600 comprises an aerosolizablematerial 605. The aerosol provision system 600 also comprises a heater640 for providing heat to the aerosolizable material 605. Theaerosolizable material 605 has at least one active constituent 610 andat least one thermally conductive element 620. The power source 630 isconnected to the heater 640. The thermal energy from the heater 640 isincident on the side 607 of the aerosolizable material 605 that isfacing the heater 640.

The arrangement of the example shown in FIG. 6 differs from thearrangement of the example shown in FIG. 5 . The at least one thermallyconductive element 620 is arranged to project down a longitudinal axisarranged centrally in the aerosolizable material 605. The at least oneactive constituent 610 is shown either side of the centrally-arranged atleast one thermally conductive element 620. The arrangement enables heatincident on the side 607 of the aerosolizable material 605 to beconducted by the at least one thermally conductive element 620 to therest of the aerosolizable material 605. This arrangement thereforeassists in enabling more homogenous heating of the aerosolizablematerial 605. The arrangement of the at least one thermally conductiveelement 620 therefore assists in preventing the at least one activeconstituent 610 near the side 607 from becoming overheated and producingundesirable compounds.

In an example, the power source 630 supplies energy to the heater 640and the heater 640 is arranged to operate at around 70° C. The use ofthe at least one thermally conductive element 620 enables efficienttransfer of heat throughout the aerosolizable material 605. Therefore,the system 600 may operate at a lower temperature. In this way, use ofthe at least one thermally conductive element 620 may reduce the load onthe power source 630 and the heater 640 increasing the lifetime of thesystem 600 per charge (as less power source 630 energy is required perpuff) and increasing the lifetime of the system 600 as a while (as lesselectrical strain is placed on the elements within the system 600). Inan example, the power source 630 and heater 640 may operate to heat theaerosolizable material 605 to around 70° C.

Any of the disclosed aerosol provision systems may have controlcircuitry arranged to control the heating to produce an aerosol and/orreceive signals from sensors or from the user and/or to control movementof the guide element (or portions thereof) or the like. The controlleror the control circuitry may be connected to a database for determiningwhen certain predetermined values are exceeded or are outside ofpredetermined ranges. This may lead to controlling heating of the heateror controlling control flow of the aerosol through the aerosol provisionsystem.

The heating may be provided by a resistive heater to provide thermalenergy to the aerosolizable material 605. In an example, the thermallyconductive material is therefore heatable by resistive heating. In anexample, the thermally conductive material is not heatable via inductionheating or magnetism. For example, thermally conductive material may beformed from at least one of ceramics and a binder or the like.

In some embodiments, the aerosol provision system is an electroniccigarette, also known as a vaping device or electronic nicotine deliverysystem (END), although it is noted that the presence of nicotine in theaerosolizable material is not a requirement.

In some embodiments, the aerosol provision system is a tobacco heatingsystem, also known as a heat-not-burn system.

In some embodiments, the aerosol provision system is a hybrid system togenerate aerosol using a combination of aerosolizable materials, one ora plurality of which may be heated. Each of the aerosolizable materialsmay be, for example, in the form of a solid, liquid or gel and may ormay not contain nicotine. In some embodiments, the hybrid systemcomprises a liquid or gel aerosolizable material and a solidaerosolizable material. The solid aerosolizable material may comprise,for example, tobacco or a non-tobacco product.

Typically, the aerosol provision system may comprise an aerosolprovision device and an article for use with the aerosol provisiondevice. However, it is envisaged that articles which themselves comprisea means for powering an aerosol generating component may themselves formthe aerosol provision system.

In some embodiments, the aerosol provision device may comprise a powersource and a controller. The power source may, for example, be anelectric power source.

In some embodiments, the article for use with the aerosol provisiondevice may comprise an aerosolizable material, an aerosol generatingcomponent, an aerosol generating area, a mouthpiece, and/or an area forreceiving aerosolizable material.

In some embodiments, the aerosol generating component is a heatercapable of interacting with the aerosolizable material so as to releaseone or more volatiles from the aerosolizable material to form anaerosol.

In some embodiments, the substance to be delivered may be anaerosolizable material. Aerosolizable material, which also may bereferred to herein as aerosol generating material, is material that iscapable of generating aerosol, for example when heated, irradiated orenergized in any other way. Aerosolizable material may, for example, bein the form of a solid, liquid or gel which may or may not containnicotine and/or flavorant. In some embodiments, the aerosolizablematerial may comprise an “amorphous solid”, which may alternatively bereferred to as a “monolithic solid” (i.e. non-fibrous). In someembodiments, the amorphous solid may be a dried gel. The amorphous solidis a solid material that may retain some fluid, such as liquid, withinit. In some embodiments, the aerosolizable material may for examplecomprise from about 50 wt %, 60 wt % or 70 wt % of amorphous solid, toabout 90 wt %, 95 wt % or 100 wt % of amorphous solid.

The aerosolizable material may comprise one or more active constituents,one or more carrier constituents and optionally one or more otherfunctional constituents.

The active constituent may comprise one or more physiologically and/orolfactory active constituents which are included in the aerosolizablematerial in order to achieve a physiological and/or olfactory responsein the user. The active constituent may for example be selected fromnutraceuticals, nootropics, and psychoactives. The active constituentmay be naturally occurring or synthetically obtained. The activeconstituent may comprise for example nicotine, caffeine, taurine, or anyother suitable constituent. The active constituent may comprise aconstituent, derivative or extract of tobacco or of another botanical.In some embodiments, the active constituent is a physiologically activeconstituent and may be selected from nicotine, nicotine salts (e.g.nicotine ditartrate/nicotine bitartrate), nicotine-free tobaccosubstitutes, other alkaloids such as caffeine.

In some embodiments, the active constituent is an olfactory activeconstituent and may be selected from a “flavor ” and/or “ flavorant”which, where local regulations permit, may be used to create a desiredtaste, aroma or other somatosensorial sensation in a product for adultconsumers. In some instances such constituents may be referred to asflavors, flavorants, cooling agents, heating agents, or sweeteningagents. They may include naturally occurring flavor materials,botanicals, extracts of botanicals, synthetically obtained materials, orcombinations thereof (e.g., tobacco, cannabis, licorice (liquorice),hydrangea, eugenol, Japanese white bark magnolia leaf, chamomile,fenugreek, clove, maple, matcha, menthol, Japanese mint, aniseed(anise), cinnamon, turmeric, Indian spices, Asian spices, herb,wintergreen, cherry, berry, red berry, cranberry, peach, apple, orange,mango, clementine, lemon, lime, tropical fruit, papaya, rhubarb, grape,durian, dragon fruit, cucumber, blueberry, mulberry, citrus fruits,Drambuie, bourbon, scotch, whiskey, gin, tequila, rum, spearmint,peppermint, lavender, aloe vera, cardamom, celery, cascarilla, nutmeg,sandalwood, bergamot, geranium, khat, naswar, betel, shisha, pine, honeyessence, rose oil, vanilla, lemon oil, orange oil, orange blossom,cherry blossom, cassia, caraway, cognac, jasmine, ylang-ylang, sage,fennel, wasabi, piment, ginger, coriander, coffee, hemp, a mint oil fromany species of the genus Mentha, eucalyptus, star anise, cocoa,lemongrass, rooibos, flax, ginkgo biloba, hazel, hibiscus, laurel, mate,orange skin, rose, tea such as green tea or black tea, thyme, juniper,elderflower, basil, bay leaves, cumin, oregano, paprika, rosemary,saffron, lemon peel, mint, beefsteak plant, curcuma, cilantro, myrtle,cassis, valerian, pimento, mace, damien, marjoram, olive, lemon balm,lemon basil, chive, carvi, verbena, tarragon, limonene, thymol,camphene), flavor enhancers, bitterness receptor site blockers,sensorial receptor site activators or stimulators, sugars and/or sugarsubstitutes (e.g., sucralose, acesulfame potassium, aspartame,saccharine, cyclamates, lactose, sucrose, glucose, fructose, sorbitol,or mannitol), and other additives such as charcoal, chlorophyll,minerals, botanicals, or breath freshening agents. They may beimitation, synthetic or natural ingredients or blends thereof. They maybe in any suitable form, for example, liquid such as an oil, solid suchas a powder, or gasone or more of extracts (e.g., licorice, hydrangea,Japanese white bark magnolia leaf, chamomile, fenugreek, clove, menthol,Japanese mint, aniseed, cinnamon, herb, wintergreen, cherry, berry,peach, apple, Drambuie, bourbon, scotch, whiskey, spearmint, peppermint,lavender, cardamom, celery, cascarilla, nutmeg, sandalwood, bergamot,geranium, honey essence, rose oil, vanilla, lemon oil, orange oil,cassia, caraway, cognac, jasmine, ylang-ylang, sage, fennel, piment,ginger, anise, coriander, coffee, or a mint oil from any species of thegenus Mentha), flavor enhancers, bitterness receptor site blockers,sensorial receptor site activators or stimulators, sugars and/or sugarsubstitutes (e.g., sucralose, acesulfame potassium, aspartame,saccharine, cyclamates, lactose, sucrose, glucose, fructose, sorbitol,or mannitol), and other additives such as charcoal, chlorophyll,minerals, botanicals, or breath freshening agents. They may beimitation, synthetic or natural ingredients or blends thereof. They maybe in any suitable form, for example, oil, liquid, or powder.

In some embodiments, the flavor comprises menthol, spearmint and/orpeppermint. In some embodiments, the flavor comprises flavor componentsof cucumber, blueberry, citrus fruits and/or redberry. In someembodiments, the flavor comprises eugenol. In some embodiments, theflavor comprises flavor components extracted from tobacco. In someembodiments, the flavor may comprise a sensate, which is intended toachieve a somatosensorial sensation which are usually chemically inducedand perceived by the stimulation of the fifth cranial nerve (trigeminalnerve), in addition to or in place of aroma or taste nerves, and thesemay include agents providing heating, cooling, tingling, numbing effect.A suitable heat effect agent may be, but is not limited to, vanillylethyl ether and a suitable cooling agent may be, but not limited toeucalyptol, WS-3.

The carrier constituent may comprise one or more constituents capable offorming an aerosol. In some embodiments, the carrier constituent maycomprise one or more of glycerine, glycerol, propylene glycol,diethylene glycol, triethylene glycol, tetraethylene glycol,1,3-butylene glycol, erythritol, meso-Erythritol, ethyl vanillate, ethyllaurate, a diethyl suberate, triethyl citrate, triacetin, a diacetinmixture, benzyl benzoate, benzyl phenyl acetate, tributyrin, laurylacetate, lauric acid, myristic acid, and propylene carbonate.

The one or more other functional constituents may comprise one or moreof pH regulators, colouring agents, preservatives, binders, fillers,stabilizers, and/or antioxidants.

In some embodiments, the article for use with the aerosol provisiondevice may comprise aerosolizable material or an area for receivingaerosolizable material. In some embodiments, the article for use withthe aerosol provision device may comprise a mouthpiece. The area forreceiving aerosolizable material may be a storage area for storingaerosolizable material. For example, the storage area may be areservoir. In some embodiments, the area for receiving aerosolizablematerial may be separate from, or combined with, an aerosol generatingarea.

Thus there has been described an aerosolizable material comprising atleast one active constituent and at least one thermally conductiveelement, wherein the at least one thermally conductive element has athermal conductivity of around 10 W/mK to around 500 W/mK.

The aerosol provision system may be used in a tobacco industry product,for example a non-combustible aerosol provision system.

In one embodiment, the tobacco industry product comprises one or morecomponents of a non-combustible aerosol provision system, such as aheater and an aerosolizable substrate.

In one embodiment, the aerosol provision system is an electroniccigarette also known as a vaping device.

In one embodiment the electronic cigarette comprises a heater, a powersupply capable of supplying power to the heater, an aerosolizablesubstrate such as a liquid or gel, a housing and optionally amouthpiece.

In one embodiment the aerosolizable substrate is contained in or on asubstrate container. In one embodiment the substrate container iscombined with or comprises the heater.

In one embodiment, the tobacco industry product is a heating productwhich releases one or more compounds by heating, but not burning, asubstrate material. The substrate material is an aerosolizable materialwhich may be for example tobacco or other non-tobacco products, whichmay or may not contain nicotine. In one embodiment, the heating deviceproduct is a tobacco heating product.

In one embodiment, the heating product is an electronic device.

In one embodiment, the tobacco heating product comprises a heater, apower supply capable of supplying power to the heater, an aerosolizablesubstrate such as a solid or gel material.

In one embodiment the heating product is a non-electronic article.

In one embodiment the heating product comprises an aerosolizablesubstrate such as a solid or gel material, and a heat source which iscapable of supplying heat energy to the aerosolizable substrate withoutany electronic means, such as by burning a combustion material, such ascharcoal.

In one embodiment the heating product also comprises a filter capable offiltering the aerosol generated by heating the aerosolizable substrate.

In some embodiments the aerosolizable substrate material may comprise anaerosol or aerosol generating agent or a humectant, such as glycerol,propylene glycol, triacetin or diethylene glycol.

In one embodiment, the tobacco industry product is a hybrid system togenerate aerosol by heating, but not burning, a combination of substratematerials. The substrate materials may comprise for example solid,liquid or gel which may or may not contain nicotine. In one embodiment,the hybrid system comprises a liquid or gel substrate and a solidsubstrate. The solid substrate may be for example tobacco or othernon-tobacco products, which may or may not contain nicotine. In oneembodiment, the hybrid system comprises a liquid or gel substrate andtobacco.

In order to address various issues and advance the art, the entirety ofthis disclosure shows by way of illustration various embodiments inwhich the claimed invention(s) may be practiced and provide for asuperior electronic aerosol provision system. The advantages andfeatures of the disclosure are of a representative sample of embodimentsonly, and are not exhaustive and/or exclusive. They are presented onlyto assist in understanding and teach the claimed features. It is to beunderstood that advantages, embodiments, examples, functions, features,structures, and/or other aspects of the disclosure are not to beconsidered limitations on the disclosure as defined by the claims orlimitations on equivalents to the claims, and that other embodiments maybe utilised and modifications may be made without departing from thescope and/or spirit of the disclosure. Various embodiments may suitablycomprise, consist of, or consist essentially of, various combinations ofthe disclosed elements, components, features, parts, steps, means, etc.In addition, the disclosure includes other inventions not presentlyclaimed, but which may be claimed in future.

1. An aerosolizable material comprising at least one active constituent and at least one thermally conductive element, wherein the at least one thermally conductive element has a thermal conductivity of around 10 W/mK to around 500 W/mK.
 2. An aerosolizable material according to claim 1, wherein the at least one thermally conductive element comprises a binder.
 3. An aerosolizable material according to claim 1, wherein the at least one thermally conductive element forms at most 20% by volume of the aerosolizable material.
 4. An aerosolizable material according to claim 1, wherein the at least one thermally conductive element is arranged substantially towards an outer surface of the aerosolizable material.
 5. An aerosolizable material according to claim 1, wherein the at least one thermally conductive element comprises at least one of: a metal, an alloy, a ceramic, glycerol, and graphite.
 6. An aerosolizable material according to claim 1, wherein the at least one thermally conductive element comprises at least a first binding material and a second binding material, the first binding material having a thermal conductivity of around 300 to around 400 w/mK and, the second binding material having a thermal conductivity of around 10 to around 200 w/mK.
 7. An aerosolizable material according to claim 1, wherein the at least one active constituent comprises a flavor.
 8. An aerosolizable material according to claim 1, wherein the at least one active constituent comprises tobacco.
 9. An aerosol provision system comprising: a power source; an aerosolizable material; and, a heater for providing heat to the aerosolizable material, wherein aerosolizable material comprises at least one active constituent and at least one thermally conductive element, wherein the at least one thermally conductive element has a thermal conductivity of around 10 W/mK to around 500 W/mK.
 10. An aerosol provision system according to claim 9, wherein the at least one thermally conductive element comprises a binder.
 11. An aerosol provision system according to claim 9, wherein the power source supplies energy to the heater and the heater is arranged to operate at around 70° C.
 12. A method of providing an aerosol comprising: providing an aerosol provision device comprising a heater; an aerosolizable material comprising at least one active constituent and at least one thermally conductive element, wherein the thermally conductive element has a thermal conductivity of around 10 W/mK to around 500 W/mK; engaging the aerosolizable material with the aerosol provision device; and, heating the aerosolizable material with the heater.
 13. A method of providing an aerosol according to claim 12, wherein heating the aerosolizable material with the heater comprises heating the aerosolizable material with the heater to around 70° C.
 14. A method of manufacture of the aerosolizable aerosolizable material of claim 1, the method comprising dispersing a thermally conductive element within the aerosolizable material.
 15. An aerosolizable material comprising at least one active constituent means and at least one thermally conductive means, wherein the at least one thermally conductive means has a thermal conductivity of around 10 W/mK to around 500 W/mK. 